CN202142612U - Positive and negative pole metal net for Lithium ion batteries and Lithium polymer batteries - Google Patents
Positive and negative pole metal net for Lithium ion batteries and Lithium polymer batteries Download PDFInfo
- Publication number
- CN202142612U CN202142612U CN201120144694U CN201120144694U CN202142612U CN 202142612 U CN202142612 U CN 202142612U CN 201120144694 U CN201120144694 U CN 201120144694U CN 201120144694 U CN201120144694 U CN 201120144694U CN 202142612 U CN202142612 U CN 202142612U
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- Prior art keywords
- wire netting
- batteries
- mesh
- positive
- lithium ion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model provides a positive and negative pole metal net for Lithium ion batteries and Lithium polymer batteries. The metal net comprises a substrate and meshes uniformly distributed on the substrate, and active material is embedded in the meshes. Different from planar meshes of the conventional metal net, the ribs of the meshes of the metal net provided by the utility model protrude from the substrate, namely, the meshes have a three-dimensional shape, thus more active material can adhere to the meshes, further, the capacitance of the Lithium ion batteries and Lithium polymer batteries is improved, besides, the active material does not easily fall off from the meshes, so that micro short-circuit of the batteries is avoided, and the service life of the batteries is prolonged. Different from the prior art in which the active material content is increased through enlarging the volume of the batteries, the positive and negative pole metal net can improves the content of the active material on the premise that the volumes of the batteries are not changed, so as to effectively save the inner spaces of the batteries and the material consumption for the machine body, and lighten the batteries.
Description
Technical field
The utility model belongs to lithium ion and lithium polymer battery field, relates in particular to a kind of lithium ion and lithium polymer battery and uses the both positive and negative polarity wire netting.
Background technology
At present, the application of storage battery more and more widely, especially lithium ion and lithium polymer battery rely on its capacitance big, discharge and recharge fast advantage, obtained using widely.
Lithium ion and lithium polymer battery are accommodated in the battery case by positive plate, dividing plate, negative plate, wire netting and active material, and wherein, wherein active material is coated on the wire netting.Because this wire netting is mesh grid or the punching net through punching formation; The mesh that is this wire netting all is a planar structure, and therefore, the adhesion amount of active material in the mesh of wire netting is little; And come off easily, cause the capacitance of lithium ion and lithium polymer battery little, useful life is short.
The utility model content
The purpose of the utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of lithium ion and lithium polymer battery to use the both positive and negative polarity wire netting, and the mesh of this wire netting can adhere to more active material, and the active material difficult drop-off.
The utility model is to realize like this; A kind of lithium ion and lithium polymer battery are used the both positive and negative polarity wire netting; Said wire netting comprises matrix and is uniformly distributed in the mesh on the said matrix; Said mesh has been embedded in active material, and the rib of said mesh protrudes from said matrix, and said mesh is three-dimensional shape.
Particularly, said wire netting is aluminium net, copper mesh, nickel screen, titanium net or plumbous net.
Particularly, the surface density of said wire netting is 50g/m
2～800g/m
2
Particularly, the mesh of said wire netting is square, rhombus, hexagon or fan-shaped.
Particularly, the catercorner length of the mesh of said wire netting is 0.5mm～5mm.
Particularly, the thickness of said wire netting is 0.002mm～0.5mm.
Different with the plane mesh of existing wire netting; The rib of the mesh of the wire netting of the utility model protrudes from matrix; Be that mesh is three-dimensional shape, thereby make mesh can adhere to more active material, and then increased the capacitance of lithium ion and lithium polymer battery; And active material is difficult drop-off in mesh, has avoided the micro-short circuit of battery, has prolonged the useful life of battery.To increase activity substance content different through increasing the battery volume with prior art; The utility model has increased content of active substance under the situation that does not change the battery volume; Effectively practice thrift the inside battery space, saved the consumption of organism material, alleviated the weight of battery.
Description of drawings
Fig. 1 is the sketch map of the wire netting with square mesh that provides of the utility model embodiment;
Fig. 2 is the sketch map of the wire netting with diamond-shaped meshes that provides of the utility model embodiment;
Fig. 3 is the sketch map of the wire netting with hexagon mesh that provides of the utility model embodiment;
Fig. 4 is the sketch map of the wire netting with fan-shaped mesh that provides of the utility model embodiment;
Fig. 5 is the sketch map that the utility model embodiment is provided for making the metal tape of wire netting.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Like Fig. 1～shown in Figure 4; The utility model embodiment provides a kind of lithium ion and lithium polymer battery with both positive and negative polarity wire netting 1; This wire netting 1 embeds the side of the pole plate of both positive and negative polarity, and this wire netting 1 comprises matrix 11 and be uniformly distributed in the mesh 12 on the matrix 11 that mesh 12 has been embedded in active material; The rib 13 of mesh 12 protrudes from matrix 11, and promptly mesh 12 is three-dimensional shape.
Different with the plane mesh of existing wire netting; The rib 13 of the mesh 12 of the wire netting 1 of the utility model protrudes from the matrix 11 of wire netting 1; Be that mesh 12 is three-dimensional shape; Thereby make mesh 12 can adhere to more active material, and then increased the capacitance of lithium ion and lithium polymer battery; And active material is difficult drop-off in mesh 12, has avoided the micro-short circuit of battery, has prolonged the useful life of battery.To increase activity substance content different through increasing the battery volume with prior art; The utility model has increased content of active substance under the situation that does not change the battery volume; Effectively practice thrift the inside battery space, saved the consumption of organism material, alleviated the weight of battery.
Particularly, wire netting 1 is any in aluminium net, copper mesh, nickel screen, titanium net or the plumbous net.Preferably; The wire netting 1 that anode pole plate place uses adopts the aluminium net, and the wire netting 1 that the battery negative plate place uses adopts copper mesh, thereby makes active material produce redox reaction at wire netting 1 place better; And then produce more electric current, increase the capacitance of battery.
Particularly, the mesh 12 of wire netting 1 is square (as shown in Figure 1), rhombus (as shown in Figure 2), hexagon (as shown in Figure 3) or fan-shaped shapes such as (as shown in Figure 4).
Particularly, the surface density of wire netting 1 is 50g/m
2～800g/m
2
Particularly, the catercorner length of the mesh 12 of wire netting 1 is 0.5mm～5mm.
Particularly, the thickness of wire netting 1 is 0.002mm～0.5mm.
As shown in Figure 5, the utility model also provides a kind of manufacturing process of foregoing wire netting 1, and this technology comprises the steps:
(1) is provided for making the metal tape 2 of wire netting 1;
(2) metal tape 2 is by draw-gear (not shown) tractive at the uniform velocity forward automatically;
(3) adopting the cutting knife (not shown) on metal tape 2, to cut out many transversely arranged mesh 12 continuously (is that cutting knife cuts out a transversely arranged mesh 12 each time; Constantly repeat according to this); The band of mesh 12 periphery produces with the cutting knife otch time and reverses, thereby makes the rib 13 of mesh 12 protrude from the matrix 11 of wire netting 1.
The rib 13 of the mesh 12 that this technology produces protrudes from matrix 11, and promptly mesh 12 is three-dimensional shape, thereby makes mesh 12 can adhere to more active material, and then has increased the capacitance of lithium ion and lithium polymer battery; And active material is difficult drop-off in mesh 12, has avoided the micro-short circuit of battery, has prolonged the useful life of battery.
Particularly, when adopting cutting knife on metal tape 2, to cut mesh 12, the position of each mesh 12 of next line is positioned at the centre of adjacent two mesh 12 of previous row, and adjacent incision site is 1/2 of planning grid interval.
Further; The mesh 12 of wire netting 1 is embedded in active material and forms an integral body after twin rollers rolls; Thereby make active material be fixed on firmly in the mesh 12; Thereby guaranteed that active material can redox reaction take place at wire netting 1 place, guaranteed the normal use of battery, prolonged the useful life of battery.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (6)
1. lithium ion and lithium polymer battery are used the both positive and negative polarity wire netting; Said wire netting comprises matrix and is uniformly distributed in the mesh on the said matrix; Said mesh has been embedded in active material; It is characterized in that: the rib of said mesh protrudes from said matrix, and said mesh is three-dimensional shape.
2. lithium ion as claimed in claim 1 and lithium polymer battery are used the both positive and negative polarity wire netting, it is characterized in that: said wire netting is aluminium net, copper mesh, nickel screen, titanium net or plumbous net.
3. lithium ion as claimed in claim 1 and lithium polymer battery are used the both positive and negative polarity wire netting, it is characterized in that: the surface density of said wire netting is 50g/m
2～800g/m
2
4. lithium ion as claimed in claim 1 and lithium polymer battery are used the both positive and negative polarity wire netting, it is characterized in that: the mesh of said wire netting is square, rhombus, hexagon or fan-shaped.
5. lithium ion as claimed in claim 1 and lithium polymer battery are used the both positive and negative polarity wire netting, it is characterized in that: the catercorner length of the mesh of said wire netting is 0.5mm～5mm.
6. lithium ion as claimed in claim 1 and lithium polymer battery are used the both positive and negative polarity wire netting, it is characterized in that: the thickness of said wire netting is 0.002mm～0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120144694U CN202142612U (en) | 2011-05-06 | 2011-05-06 | Positive and negative pole metal net for Lithium ion batteries and Lithium polymer batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120144694U CN202142612U (en) | 2011-05-06 | 2011-05-06 | Positive and negative pole metal net for Lithium ion batteries and Lithium polymer batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202142612U true CN202142612U (en) | 2012-02-08 |
Family
ID=45553654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120144694U Expired - Fee Related CN202142612U (en) | 2011-05-06 | 2011-05-06 | Positive and negative pole metal net for Lithium ion batteries and Lithium polymer batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202142612U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227026A (en) * | 2011-05-06 | 2011-10-26 | 深圳市钧蓝电源材料有限公司 | Anode-cathode metal meshes for lithium-ion and lithium polymer batteries and preparation method thereof |
| CN103545532A (en) * | 2013-10-18 | 2014-01-29 | 中国第一汽车股份有限公司 | Preparation method of carbon film aluminum mesh for current collector |
-
2011
- 2011-05-06 CN CN201120144694U patent/CN202142612U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227026A (en) * | 2011-05-06 | 2011-10-26 | 深圳市钧蓝电源材料有限公司 | Anode-cathode metal meshes for lithium-ion and lithium polymer batteries and preparation method thereof |
| CN103545532A (en) * | 2013-10-18 | 2014-01-29 | 中国第一汽车股份有限公司 | Preparation method of carbon film aluminum mesh for current collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20160506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |